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Control of Hazardous Energy (Lockout/Tagout). 29 CFR 1910.147. Objectives. In this course, we will cover the following: The need for energy control procedures Methods of lockout/tagout Employer’s responsibilities Employee training needs Inspection requirements. Lockout /Tagout.

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  • In this course, we will cover the following:
    • The need for energy control procedures
    • Methods of lockout/tagout
    • Employer’s responsibilities
    • Employee training needs
    • Inspection requirements
lockout tagout
Lockout /Tagout

29 CFR 1910.147

  • Technically known as the Control of Hazardous Energy
    • Control of energizing, starting, or stored energy in machinery or equipment which could cause injury to employees


  • Covers the servicing and/or maintenance of machines where the unexpected start-up or release of stored energy could cause injury
    • Construction
    • Installation and set-up
    • Adjustment or maintenance
    • Inspection
    • Modification
    • Routine service


  • Servicing and/or maintenance which takes place during normal production operations is covered only if:
    • Employee is required to remove or bypass a guard or other safety device; or
    • Employee is required to place any part of their body into the point of operation or where an associated danger zone exists during a machine operation.




  • Exception
    • Minor tool changes and adjustments, and other minor servicing activities which take place during normal production operations, are not covered if they are:
    • Routine,
    • Repetitive, and
    • Integral

….to the use of the equipment for production, provided that the work is performed using alternative measures which provide effective protection.

does not cover
Does Not Cover


  • Construction, agriculture, maritime
  • Installations under exclusive control of the electric utilities for power generation, transmission and distribution
  • Exposure to electrical hazards from work on, near, or with conductors or equipment in electric utilization installations
  • Oil and gas drilling and servicing


does not cover8
Does Not Cover


  • Normal production operations
  • Work on cord and plug connected equipment where plug is under exclusive control of employee performing servicing/maintenance
  • Hot tap operations, under special conditions


  • Authorized employee
    • An employee who locks out or tags out machines or equipment to perform servicing or maintenance on that machine or equipment.
  • Lockout or tagout is used by these employees for their own protection.


  • Affected employee
    • An employee who performs the duties of his or her job on equipment or in an area in which the energy control procedure is implemented and servicing or maintenance operations are performed.


  • All other employees
    • Other employees whose work operations are, or may be, in area where energy control procedures may be utilized


  • Energy source
    • Mechanical
    • Hydraulic
    • Chemical
    • Pneumatic
    • Electrical
    • Thermal
energy control program
Energy Control Program


  • The employer shall establish a program consisting of:
    • Written energy control procedures
    • Employee training
    • Periodic inspections
energy control program14
Energy Control Program


  • If an energy isolating device is not capable of

being locked out, the employer's energy control

program shall utilize a tagout system.

energy control program15
Energy Control Program


  • When a tagout device is used on an energy

isolating device which is capable of being locked


    • Tagout device shall be attached at the same location
    • Must provide equivalent safety
energy control procedure

Lockout Procedures

Lockout Procedures

Energy Control Procedure


  • Procedures
    • Shall be developed, documented and utilized for the control of potentially hazardous energy
    • Shall clearly and specifically outline techniques to be utilized to control hazardous energy


energy control procedure17
Energy Control Procedure


  • Energy control (LOTO) procedure
    • Statement of intended use of procedure
    • Steps for shutting down, isolating, blocking and securing machines or equipment to control hazardous energy
    • Steps for the placement, removal and transfer of lockout devices or tagout devices and the responsibility for them, and
    • Requirements for testing machine/equipment to determine and verify effectiveness of LOTO devices and other energy control measures
energy control procedure18
Energy Control Procedure


  • Exception
    • Machine/equipment has no potential for stored/residual energy after shut down
    • Machine/equipment has a single energy source which can be readily identified and isolated
    • The isolation and locking out of energy source will completely deenergize/deactivate the machine/equipment
    • Machine/equipment is isolated from that energy source and locked out during servicing or maintenance


energy control procedure19
Energy Control Procedure


  • Single lockout device will achieve a locked-out condition.
  • Lockout device is under the exclusive control of the authorized employee performing the servicing or maintenance.
  • Servicing/maintenance does not create hazards for other employees; and
  • Employer has had no accidents involving the unexpected activation/reenergization of the machine/equipment during servicing/maintenance.
materials and hardware
Materials and Hardware


  • Provided by employer
  • Singularly identified
  • Only device(s) used
  • Not used for other purposes


materials and hardware21
Materials and Hardware


  • Durable
  • Standardized
  • Substantial
  • Identifiable
periodic inspection
Periodic Inspection


  • Conducted at least annually to ensure

procedure and requirements are followed

  • Performed by authorized employee other than

the one(s) using the procedure

  • Designed to correct identified

deficiencies or inadequacies


periodic inspection25
Periodic Inspection


  • Employer shall certify that periodic inspection has been performed.
  • Lockout inspection
    • Must review each authorized employee’s responsibilities under the energy control procedure
  • Tagout inspection
    • Must review each authorized and affected employee’s responsibilities under the energy control procedure, and
    • Additional training requirements of 1910.147(c)(7)(ii)
training and communication


Training and Communication
  • Authorized employee
    • Recognition of hazardous energy sources
    • Type and magnitude of energy in workplace
    • Methods and means for energy isolation and control

Authorized Employees

training and communication27


Training and Communication
  • Affected employee
    • Purpose and use of the energy control procedure
training and communication28


Training and Communication
  • All other employees
    • Procedures for lockout and tagout
    • Prohibition of restarting or reenergizing machines that are locked or tagged out
training and communication29
Training and Communication


  • Tagout systems
    • Warning devices only; does not provide physical restraint
    • Must not be removed/bypassed/ignored
    • Must be legible and understandable
    • Must withstand environmental conditions
    • May evoke false sense of security
    • Must be securely attached

Do not start

training and communication30
Training and Communication


  • Retraining for authorized and affected employees
    • Change in job assignments
    • Change in machines, equipment or processes that present new hazards
    • Change in energy control procedures
    • Whenever periodic inspections reveal, or employer has reason to believe, there are deviations in employee knowledge or use of procedures
energy isolation
Energy Isolation


  • Lockout or tagout shall be performed only

by the authorized employees who are

performing the servicing or maintenance.

notification of employees
Notification of Employees


  • Affected employees shall be notified by the employer or authorized employee of the application and removal of LOTO devices
  • Notification given before controls are applied, and after they are removed from the machine or equipment
application of control
Application of Control


  • Sequence for lockout/tagout procedures
    • Preparation for shutdown
    • Machine or equipment shutdown
    • Machine or equipment isolation
    • LOTO device application
    • Release of stored energy
    • Verification of isolation
    • Release from LOTO
    • Inspection of machine or equipment work area
    • Location of employees
preparation for shutdown
Preparation for Shutdown


  • Know the types and amounts of energy that

it powers

  • Know the hazards of the energy to be


  • Know method or means to control


machine equipment shutdown
Machine/Equipment Shutdown


  • Turn off or shut down using established procedures
  • Orderly shutdown to avoid additional or increased hazard(s) to employees as a result of the equipment stoppage
machine equipment isolation
Machine/Equipment Isolation


  • All energy isolating devices needed to control

energy shall be physically located to isolate the

machine or equipment from the energy source(s)

lockout tagout application
Lockout/Tagout Application


  • Shall be affixed to each energy isolating device by authorized employees
  • Lockout devices
    • Shall be affixed in a manner that will hold the energy isolating devices in a "safe" or "off" position
  • Tagout devices
    • Shall be affixed in a manner indicating that the operation or movement of energy isolating devices from the "safe" or "off" position is prohibited
stored energy
Stored Energy


  • After application of device, all potentially

hazardous stored or residual energy shall be

relieved, disconnected, restrained, and

otherwise rendered safe.

verification of isolation
Verification of Isolation


  • Prior to starting work on machines or equipment that have been locked out/tagged out
    • Authorized employee shall verify that isolation and deenergization of the machine or equipment have been accomplished
release from lockout tagout
Release from Lockout/Tagout


  • Before LOTO devices are removed and energy restored
    • Work area inspected to ensure that nonessential items have been removed and to ensure that machine or equipment components are operationally intact
    • Work area shall be checked to ensure that all employees have been safely positioned or removed
    • Affected employees notified that LOTO devices are removed
loto devices removal
LOTO Devices Removal


  • Each LOTO device shall be removed from each energy isolating device by the employee who applied the device
    • Exception: When authorized employee who applied the LOTO device is not available, device may be removed under the direction of the employer
loto devices removal43
LOTO Devices Removal


  • Employer removal of LOTO device
    • Specific procedure shall include:
      • Verification by employer that authorized employee who applied device is not at the facility
      • Making all reasonable efforts to contact authorized employee to inform them that LOTO device has been removed, and
      • Ensuring that authorized employee has this knowledge before they resume work at facility
testing or positioning of machines
Testing or Positioning of Machines


  • When LOTO devices must temporarily be removed for testing/positioning:
    • Clear machine or equipment of tools and materials
    • Remove employees from area
    • Remove lockout/tagout device
    • Energize and proceed with testing or positioning
    • Deenergize and reapply energy control measures
outside personnel
Outside Personnel


  • Contractors and the on-site employer must exchange lockout/tagout information
  • On-site employees must understand and comply with rules used by the contractor
group lockout tagout
Group Lockout/Tagout


  • When servicing and/or maintenance is

performed by a group, they shall utilize a

procedure which affords employee protection

equivalent to a personal LOTO device.

group lockout tagout47
Group Lockout/Tagout


  • Primary responsibility is vested in an authorized employee
  • Authorized employee must ascertain exposure status of group members
  • If more than one crew is involved, a coordinator shall be designated
  • Each authorized employee shall use a personal LOTO device and remove device when they stop working on machine/equipment
shift personnel changes
Shift/Personnel Changes


  • Specific procedures used during shift/personnel changes to ensure the continuity of LOTO protection
    • To minimize exposures from the unexpected

energization or start-up of the machine/equipment,

or release of stored energy

sample loto program
Sample LOTO Program

Appendix A

  • Typical minimal lockout procedures
    • A non-mandatory guideline to assist employers and employees in complying with the requirements of this section

In this course, we discussed:

  • The need for energy control procedures
  • Methods of lockout/tagout procedures
  • Employer’s responsibilities
  • Employee training needs
  • Inspection requirements
thank you for attending
Thank You for Attending!

Final Questions?